a
8-Bit, High-Speed, Multiplying D/A Converter
(Universal Digital Logic Interface)
DAC08
full-scale currents eliminates the need for full-scale trimming in
most applications. Direct interface to all popular logic families
with full noise immunity is provided by the high swing, adjust-
able threshold logic input.
High voltage compliance complementary current outputs are
provided, increasing versatility and enabling differential opera-
tion to effectively double the peak-to-peak output swing. In
many applications, the outputs can be directly converted to
voltage without the need for an external op amp.
All DAC08 series models guarantee full 8-bit monotonicity,
and nonlinearities as tight as
±
0.1% over the entire operating
temperature range are available. Device performance is essen-
tially unchanged over the
±
4.5 V to
±
18 V power supply range,
with 33 mW power consumption attainable at
±
5 V supplies.
The compact size and low power consumption make the DAC08
attractive for portable and military/aerospace applications;
devices processed to MIL-STD-883, Level B are available.
DAC08 applications include 8-bit, 1
µs
A/D converters, servo
motor and pen drivers, waveform generators, audio encoders
and attenuators, analog meter drivers, programmable power
supplies, CRT display drivers, high-speed modems and other
applications where low cost, high speed and complete input/
output versatility are required.
FEATURES
Fast Settling Output Current: 85 ns
Full-Scale Current Prematched to 1 LSB
Direct Interface to TTL, CMOS, ECL, HTL, PMOS
Nonlinearity to 0.1% Maximum over
Temperature Range
High Output Impedance and Compliance:
–10 V to +18 V
Complementary Current Outputs
Wide Range Multiplying Capability: 1 MHz Bandwidth
Low FS Current Drift: 10 ppm/ C
Wide Power Supply Range: 4.5 V to 18 V
Low Power Consumption: 33 mW @ 5 V
Low Cost
Available in Die Form
GENERAL DESCRIPTION
The DAC08 series of 8-bit monolithic digital-to-analog convert-
ers provide very high-speed performance coupled with low cost
and outstanding applications flexibility.
Advanced circuit design achieves 85 ns settling times with very
low “glitch” energy and at low power consumption. Monotonic
multiplying performance is attained over a wide 20-to-1 reference
current range. Matching to within 1 LSB between reference and
FUNCTIONAL BLOCK DIAGRAM
V+
13
V
LC
1
MSB
B1
5
B2
6
B3
7
B4
8
B5
9
B6
10
B7
11
LSB
B8
12
DAC08
BIAS
NETWORK
CURRENT
SWITCHES
4
2
I
OUT
V
REF
(+)
14
I
OUT
V
REF
(–)
15
REFERENCE
AMPLIFIER
16
COMP
V–
3
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
DAC08
TYPICAL ELECTRICAL CHARACTERISTICS
Parameter
Reference Input Slew Rate
Propagation Delay
Settling Time
Symbol
dI/dt
t
PLH
, t
PHL
t
S
(@ V
S
= 15 V, and I
REF
= 2.0 mA, unless otherwise noted. Output
characteristics apply to both I
OUT
and
I
OUT
.)
All Grades
Typical
8
35
85
Unit
mA/µs
ns
ns
Conditions
T
A
= 25°C, Any Bit
To
±
1/2 LSB, All Bits
Switched ON or OFF,
T
A
= 25°C
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
1
Operating Temperature
DAC08AQ, Q . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
DAC08HQ, EQ, CQ, HP, EP . . . . . . . . . . . . 0°C to +70°C
DAC08CP, CS . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Junction Temperature (T
J
) . . . . . . . . . . . . . –65°C to +150°C
Storage Temperature Q Package . . . . . . . . . –65°C to +150°C
Storage Temperature P Package . . . . . . . . . –65°C to +125°C
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . 300°C
V+ Supply to V– Supply . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . V– to V– plus 36 V
V
LC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V– to V+
Analog Current Outputs (at V
S
– = 15 V) . . . . . . . . . . 4.25 mA
Reference Input (V
14
to V
15
) . . . . . . . . . . . . . . . . . . . V– to V+
Reference Input Differential Voltage
(V
14
to V
15
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V
Reference Input Current (I
14
) . . . . . . . . . . . . . . . . . . . 5.0 mA
Package Type
16-Lead Cerdip (Q)
16-Lead Plastic DIP (P)
20-Terminal LCC (RC)
16-Lead SO (S)
JA
2
JC
Unit
°C/W
°C/W
°C/W
°C/W
100
82
76
111
16
39
36
35
NOTES
1
Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.
2
θ
JA
is specified for worst-case mounting conditions, i.e.,
θ
JA
is specified for device
in socket for cerdip, Plastic DIP, and LCC packages;
θ
JA
is specified for device
soldered to printed circuit board for SO package.
ORDERING GUIDE
1
Model
DAC08AQ
DAC08AQ
2
/883C
DAC08HP
DAC08HQ
DAC08Q
DAC08Q
2
/883C
DAC08RC/883C
DAC08EP
DAC08EQ
DAC08ES
DAC08ES-REEL
DAC08CP
DAC08CQ
DAC08CS
DAC08CS-REEL
DAC08NBC
DAC08GBC
DAC08GRBC
NL
±
0.10%
±
0.10%
±
0.10%
±
0.10%
±
0.19%
±
0.19%
±
0.19%
±
0.19%
±
0.19%
±
0.19%
±
0.19%
±
0.39%
±
0.39%
±
0.39%
±
0.39%
±
0.10%
±
0.19%
±
0.39%
Temperature
Range
–55°C to +125°C
–55°C to +125°C
0°C to 70°C
0°C to 70°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
25°C
25°C
25°C
Package
Description
Cerdip-16
Cerdip-16
P-DIP-16
Cerdip-16
Cerdip-16
Cerdip-16
LCC-20
P-DIP-16
Cerdip-16
SO-16
SO-16
P-DIP-16
Cerdip-16
SO-16
SO-16
DICE
DICE
DICE
Package
Option
Q-16
Q-16
N-16
Q-16
Q-16
Q-16
E-20
N-16
Q-16
R-16A (Narrow Body)
R-16A (Narrow Body)
N-16
Q-16
R-16A (Narrow Body)
R-16A (Narrow Body)
# Parts Per
Container
25
25
25
25
25
25
55
25
25
47
2500
25
25
47
2500
NOTES
1
Devices processed in total compliance to MIL-STD-883. Consult factory for 883 data sheet.
2
For availability and burn-in information on SO and PLCC packages, contact your local sales office.
The DAC08 contains 84 transistors. Die size 63 mil x 87 mil = 5,481 square mils.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the DAC08 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. B
–3–
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